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Optimization of Malabar Nut (Justicia adhatoda L.) Leaves’ PhenolicCompounds by Alginate Emulsion-gelation Approach using ResponseSurface Methodology 利用响应面方法,通过藻酸盐乳液凝胶法优化马拉巴尔坚果(Justicia adhatoda L.)叶中的酚类化合物
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-03-12 DOI: 10.2174/0115734072297243240304113132
Afaf Chebout, M. Chaalal, S. Ydjedd, Louiza Himed
The encapsulation technique is an effective method for coating bioactivemolecules and protecting them against various technological treatment conditions during production processing.The aim of this study was to optimize the encapsulation conditions of phenolic compounds extracted from Malabar nut (Justicia adhatoda L.) leaves by alginate emulsion-gelationapproach using response surface methodologyThe ionotropic gelation method was used to encapsulate the phenolic compounds ofMalabar nut (Justicia adhatoda L.) leaves. The optimization of this phenolic compounds encapsulation was carried out using response surface methodology through Box˗Behnken design. Fourparameters with three levels (-1, 0, +1) were chosen including sodium alginate concentration(2 – 3 - 4%), calcium chloride concentration (4 - 6 - 8%), plant extract-alginate solution ratio(0.02 – 0.11 - 0.2 mg/ml), and gelation time (5 – 12.5 - 20 min). of the total phenolic and flavonoid contents encapsulation efficiency was assessed. Likewise, the antioxidant activity was evaluated using ferric-reducing power (FRP) and free radical scavenging activity (DPPH).The results of response surface methodology analysis using Box˗Behnken designshowed that the optimal encapsulation conditions were 3.11% for alginate concentration, 5.74%for calcium chloride concentration, 0.1 mg/ml for the plant extract-alginate solution ratio, and10.80 min for gelation time. Under these conditions, the optimum values of total phenolic andflavonoid encapsulation efficiency were 86.17% and 75.69%, respectively, 126.75 mg AAE/100g for ferric reducing power and 97.29% for DPPH. The experimental and prediction results haveexpressed a high significant level for all responses.The method revealed the validity of elaborated models through response surfacemethodology optimization processes for phenolic antioxidants encapsulation of Malabar nut(Justicia adhatoda L.) leaves extract.
本研究的目的是利用响应面方法学,通过海藻酸盐乳液-凝胶法优化从马拉巴尔坚果(Justicia adhatoda L.)叶片中提取的酚类化合物的封装条件。通过盒式设计(Box˗Behnken design),采用响应面方法对酚类化合物的封装进行了优化。选择了三个水平(-1、0、+1)的四个参数,包括海藻酸钠浓度(2 - 3 - 4%)、氯化钙浓度(4 - 6 - 8%)、植物提取物与海藻酸溶液的比例(0.02 - 0.11 - 0.2 mg/ml)和凝胶时间(5 - 12.5 - 20 分钟)。采用方框贝肯设计(Box˗Behnken design)进行响应面方法分析的结果表明,最佳封装条件为海藻酸浓度为 3.11%,氯化钙浓度为 5.74%,植物提取物与海藻酸溶液的比例为 0.1 mg/ml,凝胶时间为 10.80 分钟。在此条件下,总酚和类黄酮包封效率的最佳值分别为 86.17% 和 75.69%,铁还原力和 DPPH 的最佳值分别为 126.75 mg AAE/100g 和 97.29%。该方法揭示了通过响应面方法优化马拉巴尔坚果(Justicia adhatoda L.)叶提取物酚类抗氧化剂封装过程所建立模型的有效性。
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引用次数: 0
The Role of Apigenin in Alleviating the Impact of Environmental Pollutants 芹菜素在减轻环境污染物影响方面的作用
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-03-05 DOI: 10.2174/0115734072296125240221061200
K. Gaur, Y. Siddique
Environmental pollutants pose a serious risk to human health and are a factor in theemergence of many diseases and disorders. In recent years, the research for efficient defenceagainst these pollutants has focused much interest. Natural flavonoid apigenin in various fruitsand vegetables has shown great defence against environmental toxins. This review aims to summarizethe current knowledge regarding the protective effect of apigenin environmental pollutantsand its underlying mechanisms. The study starts by summarizing the main industrial chemicals,environmental pollutants, water contaminants, and the health hazards they provide. The articlediscusses apigenin's bioactive attributes and focuses on its anti-inflammatory, detoxifying, andantioxidant activities. Previous studies have shown that apigenin supplementation can reduce oxidativestress, inflammation, DNA damage, and organ toxicity from pollutants. The molecularprocesses behind apigenin's anti-inflammatory effects are explored, including its interactions withimportant signaling networks. Additional research is required to assess its ideal dosage, bioavailability,and potential interactions with other drugs. Moreover, more human studies are required toevaluate the long-term advantages and safety of apigenin supplementation as a defence againstthe harmful health consequences of environmental contaminants.
环境污染物严重危害人类健康,是导致多种疾病和失调的因素之一。近年来,有效抵御这些污染物的研究备受关注。各种水果和蔬菜中的天然类黄酮芹菜素对环境毒素有很好的防御作用。本综述旨在总结目前有关芹菜素对环境污染物的保护作用及其内在机制的知识。研究首先概述了主要的工业化学品、环境污染物、水污染物及其对健康的危害。文章讨论了芹菜素的生物活性属性,重点关注其抗炎、解毒和抗氧化活性。以往的研究表明,补充芹菜素可以减轻氧化应激、炎症、DNA 损伤和污染物对器官的毒性。研究还探讨了芹菜素抗炎作用背后的分子过程,包括它与重要信号网络的相互作用。还需要进行更多的研究来评估芹菜素的理想剂量、生物利用度以及与其他药物的潜在相互作用。此外,还需要进行更多的人体研究,以评估补充芹菜素作为抵御环境污染物对健康造成的有害影响的长期优势和安全性。
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引用次数: 0
Optimization of Lipopeptide Biosurfactant Production withAnti-Inflammatory and Antimicrobial Activities 具有抗炎和抗菌活性的脂肽生物表面活性剂的优化生产
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-03-04 DOI: 10.2174/0115734072287039240214112330
Salima Djafri-Dib, Yalaoui-Guellal Drifa, N. Amessis-Ouchemoukh, K. Madani, S. Ouchemoukh
Biosurfactants are very important amphiphile compounds due to theirinteresting advantages such as low toxicity, biodegradability and also their many biological properties.In the present study, antimicrobial and anti-imflammatory activities were evaluated todetermine the biological proprieties of biosurfactant BLA 2906 produced by Alcaligenes aquatilisYGD 2906 using different assays. Screening and optimization component concentrations in themedium were investigated using PBD and SRM to increase surfactant yield in term emulsificationactivity value (E24%).The halos of antifungal activity presented a mean value of 12.33 mm to 17.67 mm. Forantibacterial activity, the diameter varied from 10.33 to 12.67 mm with a very important antiinflammatoryactivity using a protein denaturation method that showed a maximum inhibition of92.79%.These results suggest that BLA 2906 may be used as a new therapeutic and antiinflammatoryagent. The PBD selected 7 significant components out of the 14 screened. TheRSM resulted in the production in terms of emulsification activity of 68.37% in the optimizedmedium.
生物表面活性剂是一种非常重要的双亲化合物,具有低毒性、生物可降解性以及多种生物特性等令人感兴趣的优点。在本研究中,使用不同的检测方法评估了由水生藻类嗜盐菌(Alcaligenes aquatilisYGD 2906)生产的生物表面活性剂 BLA 2906 的抗菌和抗炎活性,以确定其生物特性。使用 PBD 和 SRM 对主题ium 中的组分浓度进行了筛选和优化,以提高表面活性剂的乳化活性值(E24%)。这些结果表明,BLA 2906 可用作一种新的治疗和抗炎剂。PBD 从筛选出的 14 种成分中选出了 7 种重要成分。在优化介质中,RSM 产生了 68.37% 的乳化活性。
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引用次数: 0
Probing Anticancer Molecules from Onion Peels Waste; First Synthesis and Biological Studies of a Rare Quercetin Derivative-Pachypodol 从洋葱皮废弃物中探寻抗癌分子;罕见槲皮素衍生物--Pachypodol 的首次合成与生物学研究
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-03-01 DOI: 10.2174/0115734072293689240219110806
Pandurangan Nanjan, Jyotsna Nambiar, Chinchu Bose, Asoke Banerji, Bipin G. Nair
The constant increase in global onion production escalates the generationof onion peel waste. For instance, globally, >50 lakh tons of onion waste are generated annually.Its objectionable odor precludes its use in agriculture or disposal as landfilling presentsenvironmental issues. Previous studies show that two major flavonoids, quercetin and its glycosides(spiraeoside), have been identified in abundance in onion waste. By utilizing the spiraeoside(quercetin-4ʹ-glucoside), a rapid synthesis of pachypodol (quercetin-3,3′,7-trimethyl ether, and arare flavonol), an essential Ayurvedic product, has been developed and achieved. Pachypodol andanalogs were studied for their ability to inhibit matrix metalloproteinase-2 and -9 (MMP-2 & 9)activity. Amongst the compounds tested, pachypodol significantly inhibited MMP-2 activity.In-silico docking studies suggest that, unlike most known MMP inhibitors, pachypodolinteracts selectively with MMP-2 through the residues Ile222, Tyr223, and Thr227 in a zincindependentmanner.The experimental studies also prove that pachypodol inhibits the MMP-2 enzyme ina zinc-independent way.
随着全球洋葱产量的不断增加,洋葱皮废物的产生量也随之增加。其难闻的气味使其无法用于农业或进行处理,因为填埋会带来环境问题。以前的研究表明,洋葱废弃物中含有两种主要的黄酮类化合物,即槲皮素及其苷(螺旋苷)。通过利用螺旋苷(槲皮素-4ʹ-葡萄糖苷),已开发并实现了一种阿育吠陀药用必需品--Pachypodol(槲皮素-3,3′,7-三甲基醚和一种稀有黄酮醇)的快速合成。研究了 Pachypodol 及其类似物抑制基质金属蛋白酶-2 和-9(MMP-2 和 9)活性的能力。硅内对接研究表明,与大多数已知的 MMP 抑制剂不同,Pachypodol 通过 Ile222、Tyr223 和 Thr227 残基选择性地与 MMP-2 发生锌依赖性反应。
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引用次数: 0
Quality by Design and Characterization of Nimodipine Novel Carriers for the Treatment of Hypertension: Assessment of the Pharmacokinetic Profile 用于治疗高血压的尼莫地平新型载体的设计质量和特性:药代动力学特征评估
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-02-23 DOI: 10.2174/0115734072275742240103055511
A. Chettupalli, P. R. Amarachinta, Mounika Kuchukuntla, Sunand Katta, Vijay Kumar Vobenaboina, Baba Shankar Rao Garige, Pranay Renukuntla, L. Samein
Nimodipine is a highly lipophilic anti-hypertensive drug having 13%oral bioavailability (log P 3.41). Nimodipine is a prominent calcium channel blocker that must begiven intravenously for an extended period of time (1-2 weeks) in order to treat cerebral vasospasm.It might be possible to substitute a sustained-release biodegradable formulation for theongoing intravenous infusion used in this traditional therapy.The primary goal of this study was to formulate and evaluate the potentiality of ethosomesto deliver nimodipine, a potent water-insoluble anti-hypertensive drug, through the deeper layers of theskin. The greatest challenge for drug formulation is its poor oral bioavailability and solubility.Nimodipine-loaded ethosomal gel was developed for transdermal drug delivery to increasesolubility and skin penetration and to promote oral bioavailability. Central composite designemploying a thin-film hydration method was used to prepare and optimize ethosomes. A betterdispersion medium for nimodipine's preparation in ethosomes was selected based on the effect. Thedesign consisted of independent variables as lipid (X1), ethanol (X2), and sonication time (X3).Concentrations were manipulated to examine the effects on three responses, namely the %entrapmentefficiency (Y1), vesicle size (Y2), and %cumulative drug release (Y3). Surface morphologyand other in vitro tests were used to identify ethosomes containing nimodipine. The preparation ofethosomal gel formulations began with incorporating a single ethosomal formulation (F4) into variousconcentrations of gelling agents. These studies performed physicochemical characterization,compatibility testing, and in vitro drug release tests on ethosomal gels. In vivo studies involving hypertensiverats were conducted after skin permeation, and ex vivo studies were performed. In orderto assess the drug's permeability and deposition, we employed the abdomen skin of rats.The optimal process parameters resulted in ethosomes with 89.9 ± 0.19 percent entrapmentefficiency, a vesicle size of 102.37 ± 5.84 nm, and a cumulative drug release of 98.3 ±0.13%. pH and drug content measurements were consistent with the homogeneous ethosomalgels. Viscosity was found to increase with the spreadability. The ethosomal gel formulation (G2)met the regulatory standards regarding appearance, spreadability, viscosity, and in vitro releasestudies. Compared to pure nimodipine, ethosomal suspension (F4) and ethosomal gel (G2) formulationshad higher ex vivo permeation, steady-state flux, and drug retention. Rats' mean arterialpressure (146.11 ± 0.84 mmHg) was significantly lower (p < 0.01) after after two hours of theexperiment than it had been (p < 0.001) (98.88 ± 0.63 mmHg) after six hours.To summarize, ethosomal gels have been found to be lipid carriers that enhance skinpermeation and extend the anti-hypertensive effect of nimodipine. Compared to plain gel, ex vivodrug permeation through rat abdom
尼莫地平是一种高亲脂性抗高血压药物,口服生物利用度为 13%(log P 3.41)。尼莫地平是一种主要的钙通道阻滞剂,必须长期(1-2 周)静脉注射才能治疗脑血管痉挛。本研究的主要目的是配制乙硫体并评估其通过皮肤深层递送尼莫地平(一种有效的水不溶性抗高血压药物)的潜力。尼莫地平负载的乙硫体凝胶被开发用于透皮给药,以增加其溶解度和皮肤渗透性,并提高口服生物利用度。采用薄膜水合法进行中心复合设计,制备并优化了乙素体。根据效果选择了一种更好的分散介质,用于尼莫地平在乙素体中的制备。设计由自变量脂质(X1)、乙醇(X2)和超声时间(X3)组成,通过调节浓度来考察对三个反应的影响,即诱导效率(Y1)、囊泡大小(Y2)和累积药物释放率(Y3)。利用表面形态学和其他体外测试来鉴定含有尼莫地平的乙硫体。在制备乙硫体凝胶制剂时,首先将单一乙硫体制剂(F4)加入不同浓度的胶凝剂中。这些研究对乙糖体凝胶进行了物理化学表征、相容性测试和体外药物释放测试。在皮肤渗透后进行了涉及高血压患者的体内研究,并进行了体外研究。最佳工艺参数使乙糖体的诱导效率为 89.9 ± 0.19%,囊泡大小为 102.37 ± 5.84 nm,累积药物释放率为 98.3 ± 0.13%。粘度随着铺展性的增加而增加。乙素体凝胶配方(G2)在外观、铺展性、粘度和体外释放研究方面均符合法规标准。与纯尼莫地平相比,乙素体悬浮剂(F4)和乙素体凝胶制剂(G2)具有更高的体内外渗透率、稳态通量和药物保留率。大鼠的平均动脉压(146.11 ± 0.84 mmHg)在实验两小时后明显低于六小时后(98.88 ± 0.63 mmHg)(p < 0.01)。与普通凝胶相比,乙糖体凝胶中药物通过大鼠腹部皮肤的活体渗透性增强。基于凝胶的尼莫地平乙体透皮给药制剂可以实现更快的给药速度,并将给药时间延长 24 小时以上。
{"title":"Quality by Design and Characterization of Nimodipine Novel Carriers for the Treatment of Hypertension: Assessment of the Pharmacokinetic Profile","authors":"A. Chettupalli, P. R. Amarachinta, Mounika Kuchukuntla, Sunand Katta, Vijay Kumar Vobenaboina, Baba Shankar Rao Garige, Pranay Renukuntla, L. Samein","doi":"10.2174/0115734072275742240103055511","DOIUrl":"https://doi.org/10.2174/0115734072275742240103055511","url":null,"abstract":"\u0000\u0000Nimodipine is a highly lipophilic anti-hypertensive drug having 13%\u0000oral bioavailability (log P 3.41). Nimodipine is a prominent calcium channel blocker that must be\u0000given intravenously for an extended period of time (1-2 weeks) in order to treat cerebral vasospasm.\u0000It might be possible to substitute a sustained-release biodegradable formulation for the\u0000ongoing intravenous infusion used in this traditional therapy.\u0000\u0000\u0000\u0000The primary goal of this study was to formulate and evaluate the potentiality of ethosomes\u0000to deliver nimodipine, a potent water-insoluble anti-hypertensive drug, through the deeper layers of the\u0000skin. The greatest challenge for drug formulation is its poor oral bioavailability and solubility.\u0000\u0000\u0000\u0000Nimodipine-loaded ethosomal gel was developed for transdermal drug delivery to increase\u0000solubility and skin penetration and to promote oral bioavailability. Central composite design\u0000employing a thin-film hydration method was used to prepare and optimize ethosomes. A better\u0000dispersion medium for nimodipine's preparation in ethosomes was selected based on the effect. The\u0000design consisted of independent variables as lipid (X1), ethanol (X2), and sonication time (X3).\u0000Concentrations were manipulated to examine the effects on three responses, namely the %entrapment\u0000efficiency (Y1), vesicle size (Y2), and %cumulative drug release (Y3). Surface morphology\u0000and other in vitro tests were used to identify ethosomes containing nimodipine. The preparation of\u0000ethosomal gel formulations began with incorporating a single ethosomal formulation (F4) into various\u0000concentrations of gelling agents. These studies performed physicochemical characterization,\u0000compatibility testing, and in vitro drug release tests on ethosomal gels. In vivo studies involving hypertensive\u0000rats were conducted after skin permeation, and ex vivo studies were performed. In order\u0000to assess the drug's permeability and deposition, we employed the abdomen skin of rats.\u0000\u0000\u0000\u0000The optimal process parameters resulted in ethosomes with 89.9 ± 0.19 percent entrapment\u0000efficiency, a vesicle size of 102.37 ± 5.84 nm, and a cumulative drug release of 98.3 ±\u00000.13%. pH and drug content measurements were consistent with the homogeneous ethosomal\u0000gels. Viscosity was found to increase with the spreadability. The ethosomal gel formulation (G2)\u0000met the regulatory standards regarding appearance, spreadability, viscosity, and in vitro release\u0000studies. Compared to pure nimodipine, ethosomal suspension (F4) and ethosomal gel (G2) formulations\u0000had higher ex vivo permeation, steady-state flux, and drug retention. Rats' mean arterial\u0000pressure (146.11 ± 0.84 mmHg) was significantly lower (p < 0.01) after after two hours of the\u0000experiment than it had been (p < 0.001) (98.88 ± 0.63 mmHg) after six hours.\u0000\u0000\u0000\u0000To summarize, ethosomal gels have been found to be lipid carriers that enhance skin\u0000permeation and extend the anti-hypertensive effect of nimodipine. Compared to plain gel, ex vivo\u0000drug permeation through rat abdom","PeriodicalId":10772,"journal":{"name":"Current Bioactive Compounds","volume":"62 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140436923","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Convenient and Practical Synthesis of Novel Pyrimidine Derivatives andits Therapeutic Potential 新型嘧啶衍生物的便捷实用合成及其治疗潜力
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-02-22 DOI: 10.2174/0115734072282575240213091008
Kaushal Arora, Amit Kumar, P. Verma
A new series of 2-(2-(substituted aldehyde)hydrazinyl)-4-(2-chlorophenyl)-1-methyl-6-oxo-1,6-dihydropyrimidine-5-carbonitrile analogs (1–19) was preparedby using the Biginelli reaction.A novel series of 2-(2-(substituted aldehyde)hydrazinyl)-4-(2-chlorophenyl)-1-methyl-6-oxo-1,6-dihydropyrimidine-5-carbonitrile analogues (1–19) was synthesized using the Biginelli reactionTLC was employed to ensure the progress and confirmation of the reactions. Silica gelG was employed as the stationary phase, and mobile phases such as chloroform: toluene and acetone:n-hexane were used for the synthesized compounds. NMR has characterized the synthesizedcompound. MS IR, CHN.The prepared derivatives were evaluated in vitro for antimicrobial activity against variousbacteria and fungi using the tube dilution technique. Notably, compounds 2-(2-(3-Ethoxy-4-hydroxybenzylidene)hydrazinyl)-4-(2-chlorophenyl)-1-methyl-6-oxo-1,6-dihydropyrimidine-5-carbonitrile T1, 2-(2-(2-Hydroxybenzylidene)hydrazinyl)-4-(2-chlorophenyl)-1-methyl-6-oxo-1,6-dihydropyrimidine-5 carbonitrile T6, and 2-(2-(4-Hydroxybenzylidene)hydrazinyl)-4-(2-chlorophenyl)-1-methyl-6-oxo-1,6-dihydropyrimidine-5-carbonitrile T16, displayed significantantibacterial activity, surpassing the standard drug Ampicillin. In the antifungal category, compounds2-(2-(3-Ethoxy-4-hydroxybenzylidene)hydrazinyl)-4-(2-chlorophenyl)-1-methyl-6-oxo-1,6-dihydropyrimidine-5-carbonitrile T1, 2-(2-(3,4-Dimethoxybenzylidene)hydrazinyl)-4-(2-chlorophenyl)-1-methyl-6-oxo-1,6-dihydropyrimidine-5-carbonitrile T2, and 2-(2-(2,4-Dichlorobenzylidene)hydrazinyl)-4-(2-chlorophenyl)-1-methyl-6-oxo-1,6-dihydropyrimidine-5-carbonitrile T13, were very much effectiveagainst both fungal strains A. niger as well as C. albicans. Furthermore, compounds 2-(2-(2-Hydroxybenzylidene)hydrazinyl)-4-(2-chlorophenyl)-1-methyl-6-oxo-1,6-dihydropyrimidine-5 carbonitrileT6, 2-(2-(2-Nitrobenzylidene)hydrazinyl)-4-(2-chlorophenyl)-1-methyl-6-oxo-1,6-dihydropyrimidine-5-carbonitrile T8, 2-(2-(4-Chlorobenzylidene)hydrazinyl)-4-(2-chlorophenyl)-1-methyl-6-oxo-1,6-dihydropyrimidine-5-carbonitrile T12, and 2-(2-(4-Dimethylaminobenzylidene)hydrazinyl)-4-(2-chlorophenyl)-1-methyl-6-oxo-1,6-dihydropyrimidine-5-carbonitrile T14 demonstrated remarkableantioxidant properties, because of their low IC50 values in the DPPH assay. In the realm of anticanceractivity, 2-(2-(substituted aldehyde)hydrazinyl)-4-(2-chlorophenyl)-1-methyl-6-oxo-1,6-dihydropyrimidine-5-carbonitrile T9 outperformed the standard drug Adriamycin in terms of its effectivenessagainst human lung cancer cells (A-549) with a GI50 value of less than 10 according to the SRB assay.In addition, the antidiabetic assessment highlighted the excellent performance of compounds 2-(2-(2-Nitrobenzylidene)hydrazinyl)-4-(2-chlorophenyl)-1-methyl-6-oxo-1,6-dihydropyrimidine-5-carbonitrile T8, 2-(2-(4-Chlorobenzylidene)hydrazinyl)-4-(2-chlorophenyl)-1-methyl-6-oxo-1,6-dihydropyrimidi
利用 Biginelli 反应制备了一系列新的 2-(2-(取代醛)肼基)-4-(2-氯苯基)-1-甲基-6-氧代-1,6-二氢嘧啶-5-甲腈类似物 (1-19)。使用 Biginelli 反应合成了一系列新型 2-(2-(取代醛)肼基)-4-(2-氯苯基)-1-甲基-6-氧代-1,6-二氢嘧啶-5-甲腈类似物 (1-19)。硅胶 G 被用作固定相,氯仿:甲苯和丙酮:正己烷等流动相被用于合成化合物。核磁共振对合成的化合物进行了表征。采用试管稀释技术对所制备的衍生物进行了体外抗菌活性评价,以检测其对多种细菌和真菌的抗菌活性。值得注意的是,化合物 2-(2-(3-乙氧基-4-羟基亚苄基)肼基)-4-(2-氯苯基)-1-甲基-6-氧代-1,6-二氢嘧啶-5-甲腈 T1、2-(2-(2-羟基亚苄基)肼基)-4-(2-氯苯基)-1-甲基-6-氧代-1、5-甲腈 T6 和 2-(2-(4-羟基亚苄基)肼基)-4-(2-氯苯基)-1-甲基-6-氧代-1,6-二氢嘧啶-5-甲腈 T16 显示出显著的抗菌活性,超过了标准药物氨苄西林。和 2-(2-(2,4-二氯亚苄基)肼基)-4-(2-氯苯基)-1-甲基-6-氧代-1,6-二氢嘧啶-5-甲腈 T13 对 A. niger 和 C. alpha 真菌菌株都非常有效。和白僵菌都非常有效。2-(2-(2-硝基亚苄基)肼基)-4-(2-氯苯基)-1-甲基-6-氧代-1,6-二氢嘧啶-5-甲腈 T8, 2-(2-(4-氯亚苄基)肼基)-4-(2-氯苯基)-1-甲基-6-氧代-1、T12 和 2-(2-(4-二甲基氨基苯亚甲基)肼基)-4-(2-氯苯基)-1-甲基-6-氧代-1,6-二氢嘧啶-5-甲腈 T14 具有显著的抗氧化性,因为它们在 DPPH 试验中的 IC50 值很低。在抗癌领域,2-(2-(取代醛)肼基)-4-(2-氯苯基)-1-甲基-6-氧代-1,6-二氢嘧啶-5-甲腈 T9 对人肺癌细胞(A-549)的疗效优于标准药物阿霉素,根据 SRB 试验,其 GI50 值小于 10。T12 和 2-(2-(3-硝基亚苄基)肼基)-4-(2-氯苯基)-1-甲基-6-氧代-1,6-二氢嘧啶-5-甲腈 T15 的 IC50 值较低。在使用特定方法进行评估并与现有药物进行比较时,合成的衍生物表现出很强的抗菌、抗氧化、抗癌和抗糖尿病特性。值得注意的是,化合物 2-(2-(3-乙氧基-4-羟基亚苄基)肼基)-4-(2-氯苯基)-1-甲基-6-氧代-1,6-二氢嘧啶-5-甲腈 T1、2-(2-(2-羟基亚苄基)肼基)-4-(2-氯苯基)-1-甲基-6-氧代-1,6-二氢嘧啶-5-甲腈 T6,以及 2-(2-(2,4-二氯亚苄基)肼基)-4-(2-氯苯基)-1-甲基-6-氧代-1,6-二氢嘧啶-5-甲腈 T5、T6 和 T7、6-二氢嘧啶-5-甲腈 T13、2-(2-(4-氯亚苄基)肼基)-4-(2-氯苯基)-1-甲基-6-氧代-1、T12和 2-(2-(取代醛)肼基)-4-(2-氯苯基)-1-甲基-6-氧代-1,6-二氢嘧啶-5-甲腈 T9 的活性甚至高于标准药物。合成化合物中电子释放基团的存在增强了其抗菌和抗氧化作用,尤其是对枯草杆菌的作用。另一方面,取电子基团改善了它们的抗癌和抗糖尿病特性。
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引用次数: 0
Catalyst-free Aloe Vera-promoted Cyclization of 2-Amino-azarenes with Phenacyl Bromide 无催化剂芦荟促进的 2-氨基氮杂环烯与苯乙酰溴的环化反应
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-02-22 DOI: 10.2174/0115734072278083240214060120
Jyoti Baranwal, Swastika Singh, Smriti Kushwaha, Archana Jyoti
By condensing 2-aminothiazole and phenacyl bromide, a novel catalystfreesynthetic approach for the synthesis of imidazo[2,1-b]thiazole derivatives has been developed.In this work, aloe vera/water (3:2) is used as a reusable, environmentally benign, greenpromotingmedia to synthesize desired products. This method enables the synthesis of a diverserange of aryl-substituted imidazo[2,1-b]thiazoles.This solvent system demonstrates remarkable efficiency and offers numerous advantages,including shorter reaction times, the absence of side product formation, costeffectiveness,excellent atom efficiency, straightforward operation, and high yields.In conclusion, we successfully developed a green protocol for the environmentallybenign synthesis of imidazo[2,1-b]thiazole derivatives using aloe vera water as green-promotingmedia.
在这项工作中,芦荟/水(3:2)被用作一种可重复使用的、对环境无害的绿色促进介质来合成所需的产品。该溶剂系统具有效率高、反应时间短、无副产物生成、成本效益高、原子效率高、操作简单、产率高等诸多优点。
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引用次数: 0
Recent Progress in Isolating and Purifying Amide Alkaloids from theirNatural Habitats: A Review 从自然生境中分离和纯化酰胺类生物碱的最新进展:综述
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-02-21 DOI: 10.2174/0115734072284841240207104403
Himanchal Sharma, Divya Pathak, Sachin Kumar
Alkaloids are nitrogen-containing chemical compounds found in nature. Many alkaloidsare heterocyclic in nature. They are nitrogen-based organic compounds with the nitrogenatoms enclosed in a heterocyclic ring. The chemical "pro alkaloid" is derived from the alkylamines in it. Many ancient people, long before the advent of organic chemistry, recognized thatmany of these substances have measurable effects on the body's physiological functions. Alkaloidsare a type of natural substances that are classified as secondary metabolites. Many differenttypes of organisms create alkaloids, which are a class of natural products. Alkaloids showed antifungal,local anesthetic, anti-inflammatory, anticancer, analgesic, neuropharmacologic, antimicrobial,and many other activities. Amines, as opposed to alkaloids, are the more common classificationfor naturally occurring compounds that contain nitrogen in the exocyclic position (suchas mescaline, serotonin, and dopamine). An amide molecule has a nitrogen atom that is chemicallybound to a carbon atom in the carbonyl group. The -oic acid ending of the corresponding carboxylicacid is converted to -amide to form the correct nomenclature for an amide. This articleoffers an overview of numerous techniques for extracting, separating, and purifying alkaloids foruse in natural medicine.
生物碱是自然界中发现的含氮化合物。许多生物碱都是杂环化合物。它们是以氮为基础的有机化合物,氮原子被封闭在杂环中。化学名称 "原生物碱 "就来自其中的烷基胺。早在有机化学出现之前,许多古人就认识到,其中许多物质对人体的生理功能具有可测量的影响。生物碱是一种天然物质,属于次级代谢产物。许多不同类型的生物都会产生生物碱,这是一类天然产物。生物碱具有抗真菌、局部麻醉、消炎、抗癌、镇痛、神经药理、抗菌等多种活性。与生物碱相比,酰胺是在外环位置含氮的天然化合物(如麦司卡林、5-羟色胺和多巴胺)更常见的分类。酰胺分子中的氮原子与羰基中的碳原子发生化学键合。相应羧酸的"-"结尾被转化为"-",从而形成酰胺的正确命名。本文概述了提取、分离和纯化生物碱用于天然药物的多种技术。
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引用次数: 0
Role of Rosmarinus officinalis Aqueous Extract in Relieving the ComplicationsAssociated with Ethylene Glycol-induced Urolithiasis in Male Rats 迷迭香水提取物在缓解乙二醇诱导的雄性大鼠尿路结石并发症中的作用
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-02-15 DOI: 10.2174/0115734072282832240122020523
D. Foda, Heba-tollah M. Sweelam, Noha E. Ibrahim
Rosmarinus officinalis is considered one of the famous plants from ancienttimes for its therapeutic ability in many diseases, such as headache, spasms, brain disorders,and some pathological conditions associated with toxicity cases in the liver and kidneys.The current research has aimed, for the first time, to evaluate anti-urolithiatic effect of Rosmarinusofficinalis aqueous extract (RMAE) on calcium oxalate stones formation in male rats andits possible therapeutic mechanisms of action. Evaluation of the polyphenols and flavonoid contentin the extract was also performed.A calcium oxalate nephrolithiasis case was established in rats by adding ethylene glycol(1%) to the rats' daily drinking water for a duration of one month. Treatment was achieved byoral co-administration of RMAE to rats administrated ethylene glycol.Phytochemical results showed that LC/MS-MS analysis led to the identification of 37compounds in the phytoconstituent profile of RMAE. The biochemical results revealed significantimprovement in serum kidney functions (urea, creatinine, and uric acid) in addition to restoringthe calcium x phosphorous product and parathyroid hormone (PTH) levels in the plant-treatedgroup compared to the non-treated one. The data have been supported by the significant decreasein lactate dehydrogenase enzyme (LDH) expression in the liver tissues, reflecting the decrease inoxalate synthesis in the liver compared to the non-treated group. Kidneys' histological examinationsshowed the absence of oxalate crystals in the treated group and the immunohistochemicalfindings of osteopontin (OPN) protein revealed the impact of RMAE on OPN expression in kidneytissues. Improvements in the femur bone fractures and the parathyroid gland in the treatedgroup were also noticed during microscopic examinations.The anti-lithiatic effect of the extract was attributed to its influence on serum phosphate,serum PTH, and OPN levels in kidney tissues and decreasing synthesis of LDH in livertissues in addition to the prevention of secondary disease incidences, such as secondary hyperparathyroidismand cardiovascular diseases. On the other hand, the plant's considerable contentof phenolics and flavonoids has been found to play a role in controlling kidney stone progressionepisodes.
目前的研究旨在首次评估迷迭香水提取物(RMAE)对雄性大鼠草酸钙结石形成的抗尿路结石作用及其可能的治疗机制。通过在大鼠的日常饮用水中添加乙二醇(1%),建立了草酸钙肾结石病例,为期一个月。植物化学结果表明,LC/MS-MS 分析鉴定出 RMAE 植物成分中的 37 种化合物。生化结果显示,与未处理组相比,植物处理组的血清肾功能(尿素、肌酐和尿酸)明显改善,钙磷乘积和甲状旁腺激素(PTH)水平也有所恢复。肝脏组织中乳酸脱氢酶(LDH)的表达显著下降,反映出与未处理组相比,肝脏中的草酸合成减少,这也支持了上述数据。肾脏组织学检查显示治疗组没有草酸盐结晶,而骨化蛋白(OPN)的免疫组化结果显示 RMAE 影响了肾组织中 OPN 的表达。该提取物的抗石灰性作用归因于其对血清磷酸盐、血清 PTH 和肾组织中 OPN 水平的影响,以及对降低生命组织中 LDH 合成的影响,此外还能预防继发性疾病的发生,如继发性甲状旁腺功能亢进和心血管疾病。另一方面,研究还发现该植物含有大量酚类和黄酮类化合物,可在控制肾结石发作方面发挥作用。
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引用次数: 0
In vitro and in-silico Anti-diabetic Evaluation of the Combination ofAnnona squamosa Linn., Leaf Extract and Oleanolic Acid 乌鳢叶提取物和齐墩果酸组合的体外和体内抗糖尿病评估
Q2 Pharmacology, Toxicology and Pharmaceutics Pub Date : 2024-02-15 DOI: 10.2174/0115734072294929240206060527
Sasmita Dash, Nityananda Sahoo, G. Pattnaik, Chandan Das, Sovan Pattnaik, Goutam Ghosh, Goutam Rath, B. Kar
Diabetes mellitus (DM) is a metabolic disorder caused by insufficientinsulin production from pancreatic β-cells or insulin resistance; its prevalence rapidly increasesworldwide. Increasing reports indicate that most plant bioactive agents exhibited alternative andsafe effects in managing DM.The study aims to evaluate the in vitro antioxidant and anti-diabetic efficacy of thecombination of Annona squamosa Linn. (AS) leaf extract and Oleanolic acid (OA) using in vitroand in-silico approaches.The leaf of AS was extracted by soxhlet extraction using n-hexane and methanol. Themethanol extract of AS (MEAS) was subjected to GC-MS analysis. Quantification of total phenolicand flavonoid content and OA were carried out by HPLC and HPTLC analysis, respectively.In vitro antioxidant (DPPH, NO, and H2O2) and anti-diabetic (α-amylase and α-glucosidase)potentials of MEAS, OA, and a combination of MEAS and OA (MEAS + OA) were studied atdifferent concentrations using ascorbic acid and acarbose as standard, respectively. An in-silicostudy determined their binding interactions with α-amylase (PDB ID-1B2Y) and α-glucosidase(PDB ID-3W37).We found that the combination of MEAS + OA exhibited the highest in vitro antioxidantand anti-diabetic activities compared to MEAS and OA. It concluded that OA has a significantrole in potentiating the anti-diabetic effect of A. squamosa.GC-MS analysis of MEAS revealed three major bioactives like bicyclo[7.2.0]undec-4-ene, 4,11,11-trimethyl-8-methylene-,[1R-(1R*,4Z,9S*)]-, germacrene D and undecane. The highestamount of phenolic (tannic acid and gallic acid) (150 μg/ml) and flavonoid (rutin and quercetin)(40 μg/ml) compounds were found in MEAS. OA was quantified as 356.74 ng/ml in MEASby HPTLC. The significant inhibitory effects of MEAS, OA, and (MEAS + OA) on free radicalsand α-amylase and α-glucosidase were observed concentration-dependent. However, MEAS +OA exhibited a greater percentage of inhibition than MEAS and OA alone. The in-silico analysisrevealed highest docking-score of OA (-9.8 & -8.8), Germacrene D (-7.5 & -6.5) and Bicyclo[7.2.0]undec-4-ene, 4,11,11-trimethyl-8-methylene-,[1R-(1R*,4Z,9S*)]-, (-7.0 & -6.4) againstIB2Y and 3W37 proteins, respectively.
糖尿病(DM)是由于胰腺β细胞分泌的胰岛素不足或胰岛素抵抗引起的代谢紊乱,其发病率在全球范围内迅速上升。本研究的目的是采用体外和体内方法,评估鳞叶木贼(AS)叶提取物和齐墩果酸(OA)组合的体外抗氧化和抗糖尿病功效。AS 的甲醇提取物(MEAS)进行了 GC-MS 分析。以抗坏血酸和阿卡波糖为标准,分别研究了不同浓度的 MEAS、OA 以及 MEAS 和 OA 组合(MEAS + OA)的体外抗氧化(DPPH、NO 和 H2O2)和抗糖尿病(α-淀粉酶和α-葡萄糖苷酶)潜力。我们发现,与 MEAS 和 OA 相比,MEAS + OA 组合具有最高的体外抗氧化和抗糖尿病活性。对 MEAS 的气相色谱-质谱分析发现了三种主要的生物活性物质,如双环[7.2.0]十一碳-4-烯、4,11,11-三甲基-8-亚甲基-[1R-(1R*,4Z,9S*)]-、胚芽烯 D 和十一烷。酚类化合物(单宁酸和没食子酸)(150 μg/ml)和类黄酮(芦丁和槲皮素)(40 μg/ml)在 MEAS 中含量最高。通过 HPTLC 法,MEAS 中的 OA 定量为 356.74 ng/ml。MEAS、OA和(MEAS + OA)对自由基、α-淀粉酶和α-葡萄糖苷酶的明显抑制作用呈浓度依赖性。不过,MEAS + OA 的抑制率高于 MEAS 和 OA 本身。硅内分析表明,OA(-9.8 和 -8.8)、锗蒽 D(-7.5 和 -6.5)和双环[7.2.0]十一碳-4-烯、4,11,11-三甲基-8-亚甲基-[1R-(1R*,4Z,9S*)]-(-7.0 和 -6.4)分别对IB2Y 和 3W37 蛋白具有最高的对接分数。
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引用次数: 0
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Current Bioactive Compounds
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